Evidence map›Paper›PMID 39725702›Full record

ArticleSpinal cord2025

Does irisin mediate metabolic effects of androgen deficiency? A cross-sectional study in men with chronic spinal cord injury.

Claudia Venditti, Veronica Carnicelli, Valentina Gizzi, Camilla Tonni, Daniele Tienforti, Luca Spagnolo, Giorgio Felzani, Mauro Maccarrone, Marco G Baroni, Arcangelo Barbonetti

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Article in Spinal cord, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

0numbers the graph read from it
0cells of the map it votes in
1citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

1 citing paper in PubMed.

  1. Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors.

Claudia Venditti *Andrology Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
Veronica Carnicelli *Department of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.
Valentina GizziAndrology Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.ORCID 0009-0002-5238-1274
Camilla TonniAndrology Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
Daniele TienfortiAndrology Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
Luca SpagnoloAndrology Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
Giorgio FelzaniSpinal Unit, San Raffaele Sulmona Institute, Sulmona, Italy.
Mauro MaccarroneDepartment of Biotechnological and Applied Clinical Sciences, University of L'Aquila, L'Aquila, Italy.
Marco G BaroniAndrology Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy.
Arcangelo BarbonettiAndrology Unit, Department of Life, Health and Environmental Sciences, University of L'Aquila, L'Aquila, Italy. arcangelo.barbonetti@univaq.it.ORCID 0000-0002-6888-9585

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

STUDY

designRetrospective study.

objectivesTo check the hypothesis that irisin could mediate systemic metabolic effects of testosterone in men with chronic spinal cord injury (SCI).

settingSpinal Unit of the San Raffaele Institute in Sulmona.

methodsFifteen men with chronic SCI admitted to a rehabilitation program were involved. They underwent clinical and biochemical evaluations. Irisin levels were measured with a high-sensitivity ELISA kit. Free testosterone levels were calculated (cFT) from total testosterone, sex hormone binding globulin, and albumin concentrations using the Vermeulen formula.

resultsAndrogen deficiency (total testosterone <3 ng/ml and cFT <64 pg/ml) was found in 53% of participants and was associated with significantly lower irisin levels, higher body mass index (BMI), and higher triglycerides. Participants were engaged in significantly poorer leisure time physical activity (LTPA). Circulating irisin correlated with cFT (r = 0.55; p = 0.03) and both were negatively correlated with triglycerides levels, homeostatic model assessment of insulin resistance (HOMA-IR) and systemic inflammation, as assessed by erythrocyte sedimentation rate (ESR). Correlations with irisin did not reach statistical significance for either BMI (r = -0.40; p = 0.13) or LTPA (r = 0.46; p = 0.08). In bivariate linear regression models, lower irisin levels were significantly associated with higher triglycerides (β = -0.46; 95% CI: -0.75 to -0.16), HOMA-IR (β = -0.32; 95% CI: -0.63 to -0.004) and ESR (β = -0.89; 95% CI: -1.69 to -0.10) independently of cFT. Conversely, the negative associations of cFT with the same variables were lost after adjustment for irisin levels.

conclusionsSpinal cord-injured men with androgen deficiency exhibit lower levels of irisin, which could mediate the systemic effects of testosterone.

Indexed as

AndrogensFibronectinsSpinal Cord InjuriesTestosteroneAdultBody Mass IndexChronic DiseaseCross-Sectional StudiesHumansInsulin ResistanceMaleMiddle AgedRetrospective StudiesSex Hormone-Binding GlobulinAndrogensFibronectinsFNDC5 protein, humanSex Hormone-Binding GlobulinTestosterone

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.